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| Number | Title | Issue Date |
| 7407002 | Air conditioner and outdoor unit therefor An air conditioner comprises an outdoor unit and an indoor unit provided with an indoor heat exchanger and an indoor expansion device, wherein the outdoor unit comprises a compressor for compressing a refrigerant, an outdoor heat exchanger for heat-exchanging a refr... | 08/05/2008 |
| 7290600 | Air-to-air heat pump defrost bypass loop A system for defrosting an air-to-air heat pump system is disclosed. A bypass loop transfers refrigerant at a higher temperature and pressure than is normally cycled through the outdoor unit to an outdoor coil to defrost ice on the outdoor coil. The bypass loop incl... | 11/06/2007 |
| 7287462 | High-level built-in oven unit A high-level built-in oven unit having a housing with a heated cooking chamber having a floor opening therein. The chamber has a lowerable trap-door movable between a position closing the floor opening and a lowered position opening the floor opening. The trap-door ... | 10/30/2007 |
| 7266953 | Stacked condensing assembly A condensing assembly for urging condensation of a vapour into a liquid has a vertically stacked modular array of horizontal condensation units exposed to a heat transfer medium. Each condensation unit has a cooling chamber, a plurality of hollow legs and necks acce... | 09/11/2007 |
| 7234516 | Air conditioner for vehicle use When it is assumed that a vehicle is stopped or parked after its engine was stopped and a predetermined period of time has passed, a cold wind side air mixing door, hot wind side air mixing door, cold wind door and rear cold wind side air mixing door are totally clo... | 06/26/2007 |
| 7231967 | Ventilator system and method The ventilator system and method use a heat exchanger to selectively transfer heat between fresh outside air entering and exhaust air leaving an enclosed space whenever energy can be recovered from the exhaust air by doing so. The system uses a microprocessor-based ... | 06/19/2007 |
| 7201006 | Method and apparatus for monitoring air-exchange evaporation in a refrigerant-cycle system A real-time monitoring system that monitors various aspects of the operation of a refrigerant-cycle system is described. In one embodiment, the system includes a processor that measures power provided to the refrigerant-cycle system and that gathers data from one or... | 04/10/2007 |
| 7140427 | Vehicle air conditioner with defrosting operation in exterior heat exchanger In a vehicle air conditioner for heating a passenger compartment by a heater core and a heat pump cycle, when operation of a heat pump cycle is switched from a defrosting operation to a heating assist operation, a heating degree of the heater core is increased highe... | 11/28/2006 |
| 7128466 | Dual thermometer system The invention provides a dual thermometer system for the measurement and display of temperature data taken at two separate locations within an oven. In one aspect, the invention provides an elongated probe connected with a flexible electronic cable. The probe houses... | 10/31/2006 |
| 7096666 | Air-cooled condensing system and method An air-cooled condenser has a first stage comprising both a K and a D section with fin tubes fed with steam at both ends, and a second stage comprising a D section. Each core tube in the first stage has at least one extraction channel at the trailing edge of the cor... | 08/29/2006 |
| 7090000 | Heat recovery ventilator A heat recovery ventilator is provided which includes a heat exchanger having discrete inlet and exhaust passageways extending therethrough for providing heat transfer between respective fluids flowing along the inlet and the exhaust passages. The inlet passageway p... | 08/15/2006 |
| 7061202 | Automobile servomotor controller An automobile servomotor controller includes a master control unit having a master control circuit for transmitting a designation signal and a slave unit having a motor and a control circuit which controls driving of a motor by outputting an operation signal to a dr... | 06/13/2006 |
| 7012229 | Vacuum cooking apparatus and cooking method using the same A vacuum cooking apparatus and cooking method using the vacuum cooking apparatus, which automatically performs cold storage, thawing, cooking, and warming functions in a single cooking apparatus, thus improving cooking convenience. In the cooking method, a temperatu... | 03/14/2006 |
| 6999840 | Vacuum pump A vacuum pump (10) includes a control device (20) for processing operational data and operational instructions. Further, the vacuum pump (10) includes a touch screen (40) serving as display for displaying the operational data callable fro... | 02/14/2006 |
| 6983794 | Heat exchanger unit The present invention provides a heat exchanger unit that can appropriately inhibit freezing of a heat exchange element even in cold climates. The heat exchanger unit performes heat exchange and ventilation between an indoor space and an outdoor space, and is provid... | 01/10/2006 |
| 6980867 | Fryer for commercial use A fryer controller is provided with a calendar function. In addition, a maintenance execution time is set for each maintenance item by operating a switch on an operating panel 16. When the maintenance execution time reaches a preset time, an asterisk * is dis... | 12/27/2005 |
| 6954994 | Moisture removal mechanism A moisture removal mechanism comprises a drying zone through which product to be dried passes. A fluid circulation path is in fluid communication with the drying zone. A forced fluid feed device directs drying fluid to and from the drying zone, the fluid feed device... | 10/18/2005 |
| 6928831 | Combined cooling plant/heat pump for cooling, heating and dehumidifying a motor vehicle interior The invention relates to a combined cooling plant/heat pump for use in motor vehicles for the cooling, heating and dehumidification of the vehicle interior. A refrigerant circuit is thermally coupled to the ventilation system over an internal heat exchanger having t... | 08/16/2005 |
| 6817408 | Heat exchanger with integral internal temperature sensor A heat exchange method and apparatus having a cooled fluid flowing in contact with a first surface of a heat exchange wall and a cooling fluid flowing in contact with a second surface of the wall. At least one temperature sensor is located to directly monitor the te... | 11/16/2004 |
| 6769481 | Outdoor heat exchanger unit, outdoor unit, and gas heat pump type air conditioner An object of the present invention is to provide an outdoor heat exchanger unit which is hardly effected adverse effects of the gas engine waste heat during the cooling operation and which can improve an efficiency of the refrigerant cycle, and which can improve the... | 08/03/2004 |
| 6715540 | Air-conditioning apparatus for vehicle The air heating capability of an indoor heat exchanger is limited to set the temperature of the indoor heat exchanger to a first predetermined temperature Tel or lower during heating. Thereby, fogging is prevented through re-evaporation of the condensed water in the... | 04/06/2004 |
| 6588499 | Air ejector vacuum control valve The present invention comprises a method and device for deterring the freezing within a condenser by preventing critical pressure differentials from building up between the exhaust steam header and the air ejector systemy. The means for regulating pressur... | 07/08/2003 |
| 6220042 | Method and device for motor vehicle heating and air conditioning monitoring windscreen misting The invention concerns a refrigerating fluid circuit capable of operating in three fluid circulation modes, namely an air conditioning mode whereby the fluid circulates successively in the evaporator where it is evaporated by receiving the heat of the air... | 04/24/2001 |
| 6185481 | Air cooled electronic equipment apparatus A semiconductor device provided with a first cooling fan and heat-radiating fins is mounted on a board, and there is provided a second cooling fan for supplying cooling air to the board, such that a flow passage is formed for directing the cooling air, su... | 02/06/2001 |
| 6176305 | Ventilator system and method The ventilator system and method use a isolating heat exchanger to selectively transfer heat between exhaust air leaving an enclosed space and outside air entering the enclosed space. The system operates in three basic modes, under the control of a microp... | 01/23/2001 |
| 6145754 | Air conditioner for vehicle According to the present invention, even when the two-layer mode in which the inside air is introduced into a first air passage and the outside air is introduced into a second air passage is set, it is further determined whether air mix doors are controll... | 11/14/2000 |
| 5934368 | Air-cooled electronic apparatus with condensation prevention A highly reliable electronic apparatus free from condensation in the cabinet of the apparatus. The electronic apparatus has printed circuit boards on which heat emitting semiconductor devices are mounted and a fan. The electronic apparatus further compris... | 08/10/1999 |
| 5927399 | Aftercooler with integral bypass line An aftercooler apparatus condenses vapor in untreated gas discharged from a compressor of a gas drying system. The apparatus includes a radiator, a bypass line and a bypass valve. The radiator features a first inlet, a second inlet and an outlet. The firs... | 07/27/1999 |
| 5799728 | Dehumidifier Apparatus for dehumidifying air comprising two cooling coils operable in a first mode for circulating coolant at a temperature above 32° F. and below the dew point of the air through one of the coils and for circulating coolant at a temperature below 32Â... | 09/01/1998 |
| 5782290 | Tubular heat exchange system A tubular heat exchange systems is disclosed. An outer tube section, though which a first medium passes, also contains inner coils, through which a second medium passes. The first medium can be drawn into the outer tube at each end of the tube using pumps... | 07/21/1998 |
| 5722245 | Microwave heat pump defroster A microwave heat pump defroster system, utilizing a magnetron tube, or other microwave energy generating device, for the application of heat to the external surfaces of the outside coil of an electric heat pump, while the heat pump is operating in the hea... | 03/03/1998 |
| 5697223 | Method of control for car air-conditioner A method of control of a car air-conditioner which prevents condensation and fogging on window glass occurring at the initial start of a slow starting heat pump system, without dehumidification by a large amount of ventilation as in the past, by driving a... | 12/16/1997 |
| 5497823 | Energy recovery ventilator: means for defrosting heat exchanger medium and damper motor actuation means In an energy recovery ventilator (ERV) for exchanging indoor air with outdoor air. The ERV having a housing including first and second input ports, and, first and second exhaust ports, and a heat exchanger core. The ERV further having a first blower for d... | 03/12/1996 |
| 5431215 | Pressure switch for energy recovery ventilator A pressure switch for an energy recovery ventilator. The energy recovery ventilator for exchanging indoor air with outdoor air. The energy recovery ventilator having a housing including a first, and a second input port, and, a first and a second exhaust p... | 07/11/1995 |
| 5273106 | Self-defrosting recuperative air-to-air heat exchanger A heat exchanger includes a stationary spirally or concentrically wound heat exchanger core with rotating baffles on upper and lower ends thereof. The rotating baffles include rotating inlets and outlets which are in communication with respective fixed in... | 12/28/1993 |
| 5193610 | Defrostable ventilation system The present invention relates to an apparatus for defrostable ventilation systems which include an element for the transfer of heat from warm exhaust air (taken from inside a building) to cooler exterior fresh air which is drawn into the building, the sys... | 03/16/1993 |
| 5163503 | Multi-type air conditioner with dew formation protection function in distribution unit An outdoor unit includes at least a compressor and an outdoor heat exchanger coupled to the compressor. Each of a plurality of indoor units includes at least an indoor heat exchanger. A distribution unit couples the outdoor unit in parallel with the plura... | 11/17/1992 |
| 5085037 | Minimizing the effects of icing in the intakes of aerospace propulsors An air intake suitable for an aerospace propulsor comprises a duct in which are provided two pirmary heat exchangers arranged in parallel relationship and a secondary heat exchanger downstream of the primary heat exchangers. The primary and secondary heat... | 02/04/1992 |
| 4953630 | Apparatus for controlling an automobile air-conditioner to control defrost bleed air An automobile air-conditioner controlling apparatus is equipped with a determination means for determining the amount of air bleeding from a defroster outlet, based on at least the outside temperature and the amount of opening of an air-mix door, when the... | 09/04/1990 |
| 4884626 | Combination refrigerator oven A self-contained refrigerator-oven for refrigerating and cooking food in the same enclosed chamber, has both heating elements and cooling elements located in the same appliance. The heating elements may be conventional heating elements and/or a convection... | 12/05/1989 |
